:root{--blue:#2c71ed;--blue-dark:#1e56c4;--ink:#161c2b;--ink-soft:#4a535f;--panel:#f4f7f6;--line:#e6e9e8;}
*{box-sizing:border-box;}
body{margin:0;font-family:'Helvetica Neue',Arial,sans-serif;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}

.blog-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:50;}
.blog-header-inner{max-width:1100px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;}
.blog-header img{display:block;width:148px;height:42px;object-fit:contain;object-position:left center;}
.blog-header nav{display:flex;gap:8px;font-size:15px;font-weight:600;}
.blog-header nav a{padding:10px 14px;border-radius:8px;transition:background .15s,color .15s;}
.blog-header nav a:hover{color:var(--blue);background:var(--panel);}
@media(max-width:560px){.blog-header-inner{padding:10px 12px;}.blog-header nav{gap:0;font-size:14px;}.blog-header nav a{padding:10px 9px;}.blog-header img{width:110px;}}

.wrap{max-width:760px;margin:0 auto;padding:64px 24px 88px;}
.wrap-wide{max-width:1100px;}

h1{font-size:clamp(30px,4.5vw,44px);line-height:1.12;letter-spacing:-.02em;margin:0 0 12px;}
.meta{color:var(--ink-soft);font-size:14.5px;margin:0 0 40px;}
.lede{font-size:19px;line-height:1.6;color:var(--ink-soft);margin:0 0 48px;}

/* Post body */
.post h2{font-size:26px;margin:44px 0 12px;letter-spacing:-.01em;}
.post p,.post li{font-size:17.5px;line-height:1.7;}
.post p{margin:0 0 20px;}
.post a{color:var(--blue);text-decoration:underline;}
.post img{max-width:100%;height:auto;border-radius:10px;}
.post pre{background:#1a1f2e;color:#e5eaf3;padding:18px 20px;border-radius:10px;overflow-x:auto;font-size:14.5px;line-height:1.55;}
.post code{font-family:ui-monospace,Menlo,Consolas,monospace;}
.post blockquote{margin:24px 0;padding-left:20px;border-left:4px solid var(--blue);color:var(--ink-soft);}
.back{display:inline-block;margin-top:32px;color:var(--blue);font-weight:600;}

/* Post list */
.post-list{display:grid;gap:24px;}
.post-card{display:block;padding:28px 30px;border:1px solid var(--line);border-radius:12px;background:var(--panel);transition:transform .2s,box-shadow .2s,border-color .2s;}
.post-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.08);border-color:var(--blue);}
.post-card h2{margin:0 0 8px;font-size:22px;letter-spacing:-.01em;}
.post-card p{margin:0;color:var(--ink-soft);line-height:1.6;}
.post-card .meta{margin:0 0 10px;font-size:13.5px;}

.blog-footer{border-top:1px solid var(--line);background:var(--panel);padding:32px 24px;text-align:center;font-size:13.5px;color:#8a9096;}

/* ===== Article layout (hero band, callouts, cards) ===== */
.post-hero{background:linear-gradient(135deg,#050a17 0%,#0e1d3a 60%,#142a52 100%);color:#fff;}
.post-hero-inner{max-width:820px;margin:0 auto;padding:72px 24px 64px;}
.post-kicker{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#6aa5ff;margin-bottom:18px;}
.post-hero h1{color:#fff;font-size:clamp(34px,5.2vw,56px);line-height:1.08;letter-spacing:-.03em;margin:0 0 22px;}
.post-hero h1 em{font-style:normal;background:linear-gradient(105deg,#19b7ed,#3d8bf5 45%,#8a63f5);-webkit-background-clip:text;background-clip:text;color:transparent;}
.post-hero .meta{color:#aebbd3;margin:0;font-size:14.5px;}

.article{max-width:720px;margin:0 auto;padding:56px 24px 40px;}
.article p{font-size:18px;line-height:1.75;margin:0 0 22px;color:#242b3a;}
.article p.lead{font-size:21px;line-height:1.65;color:var(--ink);}
.article h2{font-size:30px;line-height:1.2;letter-spacing:-.02em;margin:56px 0 16px;}
.article strong{color:var(--ink);}
.article a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;}

.pullquote{margin:40px 0;padding:6px 0 6px 26px;border-left:5px solid var(--blue);font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.015em;color:var(--ink);}

.distance-grid{list-style:none;margin:32px 0 36px;padding:0;display:grid;gap:16px;}
.distance-grid li{background:#0f1a30;border:1px solid rgba(75,133,255,.35);border-radius:14px;padding:22px 24px;display:grid;grid-template-columns:44px 1fr;gap:4px 18px;align-items:start;}
.distance-grid .num{grid-row:span 2;width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:14px;display:grid;place-items:center;}
.distance-grid h3{margin:2px 0 0;font-size:18px;color:#fff;letter-spacing:-.01em;}
.distance-grid p{margin:0;font-size:16px;line-height:1.6;color:#b6c4d8;}

.callout{margin:40px 0;padding:24px 28px;background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--blue);border-radius:10px;font-size:19px;line-height:1.55;font-weight:600;color:var(--ink);}

.todo{background:#fff3a3;color:#5a4a00;padding:2px 6px;border-radius:4px;font-size:.92em;}

.next-up{max-width:720px;margin:24px auto 88px;padding:0 24px;}
.next-up-card{background:linear-gradient(135deg,#050a17,#142a52);color:#fff;border-radius:16px;padding:32px 34px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.next-up-card small{display:block;font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#6aa5ff;margin-bottom:8px;}
.next-up-card p{margin:0;font-size:19px;line-height:1.45;max-width:420px;font-weight:600;}
.next-up-card a.cta{background:var(--blue);color:#fff;padding:14px 26px;border-radius:9px;font-weight:700;white-space:nowrap;}
.next-up-card a.cta:hover{background:var(--blue-dark);}
.article-back{display:block;max-width:720px;margin:0 auto;padding:0 24px 8px;color:var(--blue);font-weight:600;}

@media(max-width:700px){
  .post-hero-inner{padding:48px 20px 44px;}
  .article{padding:40px 20px 24px;}
  .article p{font-size:17px;}
  .article p.lead{font-size:19px;}
  .article h2{font-size:25px;}
  .pullquote{font-size:21px;}
  .next-up-card{padding:26px 24px;}
}

/* ===== Post 2 additions ===== */
.loop-grid{grid-template-columns:1fr 1fr;}
.hazards{list-style:none;margin:28px 0 36px;padding:0;}
.hazards li{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:18px 22px;margin-bottom:12px;font-size:17px;line-height:1.65;color:#242b3a;}
.hazards li strong{display:block;font-size:18px;margin-bottom:4px;color:var(--ink);}
.versus{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0;}
.versus>div{border-radius:14px;padding:24px 26px;}
.versus h3{margin:0 0 10px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;}
.versus p{margin:0;font-size:16.5px;line-height:1.6;}
.versus .good{background:#0f1a30;border:1px solid rgba(75,133,255,.4);}
.versus .good h3{color:#6aa5ff;}
.versus .good p{color:#d3deef;}
.versus .weak{background:#fff;border:1px dashed #b7c0cc;}
.versus .weak h3{color:var(--ink-soft);}
.versus .weak p{color:var(--ink-soft);}
.todo-block{background:#fff3a3;color:#5a4a00;border:2px dashed #d9b900;border-radius:10px;padding:18px 22px;margin:32px 0;font-size:16px;line-height:1.55;}
@media(max-width:700px){.loop-grid,.versus{grid-template-columns:1fr;}}

/* ===== Failure-mode blocks ===== */
.part-break{border:0;height:1px;background:var(--line);margin:64px 0 8px;}
.mode{margin:28px 0;padding:24px 28px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 6px 22px rgba(15,26,48,.05);}
.mode .tag{display:block;font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);}
.mode h3{margin:6px 0 12px;font-size:22px;line-height:1.25;letter-spacing:-.015em;color:var(--ink);}
.mode p{margin:0 0 14px;font-size:17.5px;}
.mode p:last-child{margin-bottom:0;}
.needs{list-style:none;margin:24px 0 32px;padding:0;display:flex;flex-wrap:wrap;gap:10px;}
.needs li{background:#0f1a30;color:#d3deef;border:1px solid rgba(75,133,255,.4);border-radius:999px;padding:9px 18px;font-size:15px;font-weight:600;}
@media(max-width:700px){.mode{padding:20px 20px;}.mode h3{font-size:20px;}}
.next-up-card p a{color:#fff;text-decoration:none;}
.next-up-card p a:hover{text-decoration:underline;text-underline-offset:3px;}

/* ===== p2v post: pipeline stages + code comparison ===== */
.stages{list-style:none;margin:32px 0 36px;padding:0;position:relative;}
.stages:before{content:"";position:absolute;left:21px;top:10px;bottom:30px;width:2px;background:linear-gradient(#3d8bf5,#8a63f5);}
.stages li{position:relative;padding:0 0 22px 66px;}
.stages .n{position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:14px;display:grid;place-items:center;box-shadow:0 0 0 6px #fff;}
.stages h3{margin:2px 0 4px;font-size:19px;letter-spacing:-.01em;color:var(--ink);}
.stages p{margin:0;font-size:16.5px;line-height:1.6;color:#4a535f;}
.code-compare{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0 8px;width:min(1040px,94vw);position:relative;left:50%;transform:translateX(-50%);}
.code-compare.one{grid-template-columns:1fr;width:100%;left:0;transform:none;}
.code-compare .panel{background:#0f1a30;border:1px solid rgba(75,133,255,.35);border-radius:12px;overflow:hidden;min-width:0;}
.code-compare h4{margin:0;padding:10px 16px;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:#6aa5ff;background:#0a1328;}
.code-compare pre{margin:0;padding:14px 16px;color:#e5eaf3;font-size:13px;line-height:1.55;overflow-x:auto;font-family:ui-monospace,Menlo,Consolas,monospace;}
.code-caption{text-align:center;color:var(--ink-soft);font-size:15px;margin:10px 0 28px;}
@media(max-width:860px){.code-compare{grid-template-columns:1fr;width:100%;left:0;transform:none;}}
.post-hero .sub{margin:0 0 22px;color:#c9d6ee;font-size:clamp(18px,2.2vw,22px);line-height:1.45;max-width:640px;}

/* ===== p2v post v2: horizontal flow, feature grid, testbench levels ===== */
.flow{display:flex;align-items:stretch;width:min(1040px,94vw);position:relative;left:50%;transform:translateX(-50%);margin:32px 0 10px;}
.flow .step{flex:1;min-width:0;background:#0f1a30;border:1px solid rgba(75,133,255,.45);border-radius:12px;padding:16px 8px;text-align:center;color:#fff;font-weight:700;font-size:14.5px;line-height:1.3;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;min-height:96px;}
.flow .step small{font-size:11.5px;font-weight:700;letter-spacing:.12em;color:#6aa5ff;}
.flow .step.py{border-color:rgba(138,99,245,.65);}
.flow .step.py small{color:#a98cff;}
.flow .arrow{flex:0 0 24px;display:grid;place-items:center;color:#3d8bf5;font-size:20px;}
.flow-caption{text-align:center;color:var(--ink-soft);font-size:15px;margin:8px 0 30px;}
.features{list-style:none;margin:28px 0 32px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.features li{background:#0f1a30;border:1px solid rgba(75,133,255,.35);border-radius:12px;padding:18px 20px;}
.features li:last-child:nth-child(odd){grid-column:1/-1;}
.features strong{display:block;color:#fff;font-size:17px;margin-bottom:4px;}
.features span{color:#b6c4d8;font-size:15px;line-height:1.5;}
.levels{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0;}
.levels div{background:var(--panel);border:1px solid var(--line);border-top:4px solid var(--blue);border-radius:10px;padding:18px;}
.levels h3{margin:0 0 6px;font-size:17px;color:var(--ink);}
.levels p{margin:0;font-size:15px;line-height:1.5;color:var(--ink-soft);}
@media(max-width:860px){
  .flow{flex-direction:column;width:100%;left:0;transform:none;}
  .flow .arrow{flex:0 0 26px;transform:rotate(90deg);}
  .features,.levels{grid-template-columns:1fr;}
}

/* ===== stacked code panels (python model / p2v / verilog) ===== */
.code-compare.wide{grid-template-columns:1fr;margin:14px 0 0;}
.code-compare.wide pre{font-size:13px;}
.code-compare.wide h4 span{color:#8fa3c4;font-weight:600;letter-spacing:.04em;text-transform:none;margin-left:8px;}

/* ===== batch-01 announcement post ===== */
.table-wrap{overflow-x:auto;margin:28px 0;}
.ref-table{width:100%;border-collapse:collapse;font-size:16px;line-height:1.55;}
.ref-table th{text-align:left;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);padding:10px 14px;border-bottom:2px solid var(--blue);}
.ref-table td{padding:14px;border-bottom:1px solid var(--line);vertical-align:top;color:#242b3a;}
.ref-table td:first-child{font-weight:700;color:var(--ink);}
.mode ul{margin:0 0 14px;padding-left:22px;}
.mode li{font-size:17px;line-height:1.6;margin-bottom:6px;color:#242b3a;}
.families span.teach{display:block;margin-top:8px;color:#8fb4ff;}
.article a.cta-btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;padding:15px 28px;border-radius:9px;font-weight:700;font-size:17px;margin:6px 0 24px;}
.article a.cta-btn:hover{background:var(--blue-dark);}
.features.families span.teach{color:#b6c4d8;}
@media(max-width:700px){.blog-header-inner{flex-wrap:wrap;row-gap:2px;}.blog-header nav{flex-wrap:wrap;}}